worldometersLive statistics and coronavirus news tracking the number of confirmed cases, recovered patients, and death toll by country due to the COVID 19 coronavirus from Wuhan, China. Coronavirus counter with new cases, historical data, and info. Daily charts, graphs, news and updates
https://www.worldometers.info/coronavirus/#countries
(as of this posting)
US 350,930 confirmed active cases with 9,104 cases considered serious/critical (ie hospitalization). or 2.5%. So nationwide right now of confirmed cases 97.5% are considered mild.
In Utah https://coronavirus.utah.gov/case-counts/
1675 confirmed cases with 138 hospitalizations or 8.24%. Or about 92% are considered mild in Utah.
Of course, those are just confirmed cases and not those who haven't been tested at all. So I feel good with the 95% ballpark of those with COVID-19 having 'mild' cases for purposes of comparing Dr Zelenko's results compared to everyone else and that Dr Zelenko's results aren't statistically significantly different from that of a placebo.